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Cheap flights from St. Louis to Quebec from C$ 219

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YUL
22 Apr — 29 Apr1
1 adult

Cheap flight deals from St. Louis to Quebec

Keep the following information in mind while searching for St. Louis to Quebec flight deals. Data was last updated 17 April 2025.

Round-trip from

C$ 527

One-way from

C$ 219

Popular in

June

Cheapest in

August

Average price

C$ 801
Air Canada
  • Air Canada
  • 10/5-18/5
  • 3 total stops
  • 17h 12m total
  • St. Louis to Quebec
15/5
  • 15/5
  • 2 total stops
  • 13h 27m total
  • St. Louis to Quebec
Highest demand for flights based on searches. 4% potential increase in price (C$ 61 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease (C$ 31 potential savings vs. average RT price).
Average for round-trip flights in April 2025

Find flight deals from St. Louis to Quebec

Cheapest flights from St. Louis to Quebec
Explore the most affordable flight options available from St. Louis to Quebec. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 April 2025.

Sat 10/59:40 a.m.STL - YQB
2 stops8h 56mAir Canada
Sun 18/55:20 a.m.YQB - STL
1 stop8h 16mAir Canada
Deal found 16/4C$ 527
Mon 4/84:00 p.m.STL - YQB
1 stop5h 00mUnited Airlines
Fri 8/810:25 a.m.YQB - STL
1 stop5h 56mUnited Airlines
Deal found 17/4C$ 567
Thu 15/510:10 a.m.STL - YUL
2 stops13h 27mMultiple Airlines
Thu 22/56:45 a.m.YUL - STL
1 stop18h 07mMultiple Airlines
Deal found 17/4C$ 573
Mon 4/87:23 a.m.STL - YQB
1 stop5h 17mAmerican Airlines
Fri 8/812:06 p.m.YQB - STL
2 stops9h 17mAmerican Airlines
Deal found 16/4C$ 582
Fri 2/51:30 p.m.STL - YUL
Nonstop2h 30mAir Canada
Sun 4/56:10 p.m.YUL - STL
Nonstop2h 48mAir Canada
Deal found 16/4C$ 642
Tue 27/56:00 a.m.STL - YUL
1 stop9h 04mDelta
Wed 28/55:00 p.m.YUL - STL
1 stop16h 07mDelta
Deal found 16/4C$ 652
Wed 11/66:04 a.m.STL - YUL
1 stop9h 41mAmerican Airlines
Tue 17/612:30 p.m.YUL - STL
1 stop9h 00mAmerican Airlines
Deal found 16/4C$ 678
Wed 28/58:15 a.m.STL - YUL
1 stop6h 34mUnited Airlines
Wed 28/56:10 p.m.YUL - STL
Nonstop2h 48mUnited Airlines
Deal found 16/4C$ 704
Sat 10/59:40 a.m.STL - YQB
2 stops8h 56mMultiple Airlines
Sun 18/55:20 a.m.YQB - STL
3 stops38h 21mMultiple Airlines
Deal found 16/4C$ 733
Sat 24/55:17 p.m.STL - YUL
1 stop4h 59mWestJet
Sat 31/56:00 a.m.YUL - STL
1 stop4h 35mWestJet
Deal found 16/4C$ 840

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis to Quebec that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 17 April 2025.
Use the filters below to find and compare flights from St. Louis to Quebec that are best for you.

Fly from

St. Louis

Fly to

Quebec

Route

Depart

Return

Price

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sat 10/5

1:30 p.m.-7:36 p.m.

1 stop5h 06m

Québec City

Sun 18/5

5:20 a.m.-12:36 p.m.

1 stop8h 16m

C$ 527

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 4/8

4:00 p.m.-10:00 p.m.

1 stop5h 00m

Québec City

Fri 8/8

10:25 a.m.-3:21 p.m.

1 stop5h 56m

C$ 567

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 15/5

10:10 a.m.-12:37 a.m.

2 stops13h 27m

Montreal Pierre Elliott Trudeau Intl

Thu 22/5

6:45 a.m.-11:52 p.m.

1 stop18h 07m

C$ 573

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 4/8

7:23 a.m.-1:40 p.m.

1 stop5h 17m

Québec City

Fri 8/8

12:06 p.m.-8:23 p.m.

2 stops9h 17m

C$ 582

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Fri 2/5

1:30 p.m.-5:00 p.m.

Nonstop2h 30m

Montreal Pierre Elliott Trudeau Intl

Sun 4/5

6:10 p.m.-7:58 p.m.

Nonstop2h 48m

C$ 642

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 27/5

6:00 a.m.-4:04 p.m.

1 stop9h 04m

Montreal Pierre Elliott Trudeau Intl

Wed 28/5

5:00 p.m.-8:07 a.m.

1 stop16h 07m

C$ 652

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 11/6

6:04 a.m.-4:45 p.m.

1 stop9h 41m

Montreal Pierre Elliott Trudeau Intl

Tue 17/6

12:30 p.m.-8:30 p.m.

1 stop9h 00m

C$ 678

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 28/5

8:15 a.m.-3:49 p.m.

1 stop6h 34m

Montreal Pierre Elliott Trudeau Intl

Wed 28/5

6:10 p.m.-7:58 p.m.

Nonstop2h 48m

C$ 704

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sat 10/5

9:40 a.m.-7:36 p.m.

2 stops8h 56m

Québec City

Sun 18/5

5:20 a.m.-6:41 p.m.

3 stops38h 21m

C$ 733

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sat 24/5

5:17 p.m.-11:16 p.m.

1 stop4h 59m

Montreal Pierre Elliott Trudeau Intl

Sun 1/6

6:00 a.m.-9:35 a.m.

1 stop4h 35m

C$ 840

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/4

Showing 1-10 of 19 results
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Best time to book a flight from St. Louis to Quebec

Have a flexible travel schedule? Discover the best time to fly to Quebec from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Quebec

What is the cheapest month to book a flight from St. Louis to Quebec?

Currently, October is the cheapest month in which you can book a flight from St. Louis to Quebec (average of C$ 241). Flying from St. Louis to Quebec in July is currently the most expensive (average of C$ 312). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Quebec by month

Plan your trip to Quebec by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Quebec ranges from 64.0 - 111.0 mm per month. August is typically the wettest month, when rainfall can reach 111.0 mm. February is typically the driest time to visit Quebec when rainfall is around 64.0 mm.

Temperature in Quebec by month

Plan your trip to Quebec by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Quebec, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -9.0 C).

Reviews of airlines servicing Quebec

Get insights into the airlines that provide service to Quebec. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Quebec. Reviews last updated 17 April 2025.
Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from St. Louis to Quebec by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Quebec. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from St. Louis to Quebec?

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Quebec. It is only a 20.4 km journey to Lambert-St Louis (STL) from St. Louis’s city centre.

  • What are the cheapest airlines to fly from St. Louis to Quebec one-way?

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at C$ 225. American Airlines flights start at C$ 243 while deals on United Airlines start at C$ 259 one-way.

  • Can I find deals for flights from St. Louis to Quebec that include hotel bookings?

    Yes. In addition to deals on St. Louis to Quebec flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Quebec?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Quebec.

  • Can I find deals for business class flights from St. Louis to Quebec?

    Yes. Cheapflights offers flight deals from St. Louis to Quebec by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Quebec?

    Currently, October is the cheapest month in which you can book a flight from St. Louis to Quebec (average of C$ 241). Flying from St. Louis to Quebec in July is currently the most expensive (average of C$ 312). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Why should you use Cheapflights to find cheap flight tickets from St. Louis to Quebec?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from St. Louis to Quebec.

Can Cheapflights find flights from St. Louis to Quebec with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from St. Louis to Quebec, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from St. Louis to Quebec become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Quebec from St. Louis today and book when prices fit your budget.

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